In this follow up to "The Creature from the Black Lagoon," the Gill-man is captured in the Amazon and taken to a Florida marine park. There he is put on display for visitors and subjected to heartless experiments. Growing restless in his captive surroundings, the creature breaks free and makes for the ocean. Includes screen debut of Clint Eastwood as a lab technician. Originally shot in 3-D. Based on a story by William Alland.